package com.example.demoshiyan01;

import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.Arrays;

@SpringBootApplication
public class DemoShiyan01Application {

    public static void main(String[] args) {
        SpringApplication.run(DemoShiyan01Application.class, args);
    }
    @RestController
    static class TestController{
        @RequestMapping("/")
        String index()
        {
            return "你好，spring boot！";
        }
    }

    @Bean
    public CommandLineRunner commandLineRunner(ApplicationContext ctx){
        return args -> {
            System.out.println("由Spring Boot注册的所有Bean:");
            String[] beanNames = ctx.getBeanDefinitionNames();
            Arrays.sort(beanNames);
            for(String beanName :beanNames){
                System.out.println(beanName);
            }

        };
    }
}